/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */

package org.apache.iotdb.db.integration;

import org.apache.iotdb.db.conf.IoTDBDescriptor;
import org.apache.iotdb.integration.env.ConfigFactory;
import org.apache.iotdb.integration.env.EnvFactory;
import org.apache.iotdb.itbase.category.LocalStandaloneTest;
import org.apache.iotdb.jdbc.Config;
import org.apache.iotdb.rpc.RpcTransportFactory;
import org.junit.After;
import org.junit.Before;
import org.junit.Test;
import org.junit.experimental.categories.Category;

import java.sql.Connection;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;

import static org.junit.Assert.assertEquals;

@Category({LocalStandaloneTest.class})
public class IoTDBRpcCompressionIT {
    boolean rpcThriftCompression =
            IoTDBDescriptor.getInstance().getConfig().isRpcThriftCompressionEnable();
    boolean rpcAdvancedCompression =
            IoTDBDescriptor.getInstance().getConfig().isRpcAdvancedCompressionEnable();

    @Before
    public void setUp() throws Exception {
    }

    @After
    public void tearDown() throws Exception {
        EnvFactory.getEnv().cleanAfterTest();
        ConfigFactory.getConfig().setRpcThriftCompressionEnable(rpcThriftCompression);
        ConfigFactory.getConfig().setRpcAdvancedCompressionEnable(rpcAdvancedCompression);
    }

    @Test
    public void testNoRpcCompression() throws SQLException, InterruptedException {
        EnvFactory.getEnv().initBeforeClass();
        try (Connection connection = EnvFactory.getEnv().getConnection();
             Statement statement = connection.createStatement()) {
            doSomething(statement);
        }
    }

    @Test
    public void testRpcThriftCompression() throws SQLException, InterruptedException {
        ConfigFactory.getConfig().setRpcThriftCompressionEnable(true);
        EnvFactory.getEnv().initBeforeClass();
        // let JDBC use thrift rpc compression
        Config.rpcThriftCompressionEnable = true;
        try (Connection connection = EnvFactory.getEnv().getConnection();
             Statement statement = connection.createStatement()) {
            doSomething(statement);
        } finally {
            Config.rpcThriftCompressionEnable = false;
        }
    }

    @Test
    public void testRpcAdvancedCompression() throws SQLException, InterruptedException {
        ConfigFactory.getConfig().setRpcAdvancedCompressionEnable(true);
        EnvFactory.getEnv().initBeforeClass();
        // let JDBC use thrift advanced compression
        RpcTransportFactory.setUseSnappy(true);
        try (Connection connection = EnvFactory.getEnv().getConnection();
             Statement statement = connection.createStatement()) {
            doSomething(statement);
        }
    }

    @Test
    public void testBothRpcCompression() throws SQLException, InterruptedException {
        ConfigFactory.getConfig().setRpcThriftCompressionEnable(true);
        ConfigFactory.getConfig().setRpcThriftCompressionEnable(true);
        EnvFactory.getEnv().initBeforeTest();
        // let JDBC use thrift rpc compression
        Config.rpcThriftCompressionEnable = true;
        try (Connection connection = EnvFactory.getEnv().getConnection();
             Statement statement = connection.createStatement()) {
            doSomething(statement);
        } finally {
            Config.rpcThriftCompressionEnable = false;
        }
    }

    private void doSomething(Statement statement) throws SQLException, InterruptedException {

        statement.execute("CREATE DATABASE root.demo");
        statement.execute("create timeseries root.demo.d1.s1 with datatype=INT64,encoding=RLE");
        statement.execute("create timeseries root.demo.d1.s2 with datatype=INT64,encoding=RLE");
        statement.execute("create timeseries root.demo.d1.s3 with datatype=INT64,encoding=RLE");
        statement.execute("insert into root.demo.d1(time,s1,s2) values(1,1,2)");
        statement.execute("flush");
        statement.execute("insert into root.demo.d1(time,s3) values(1,1)");
        statement.execute("flush");
        try (ResultSet set = statement.executeQuery("SELECT * FROM root.**")) {
            int cnt = 0;
            while (set.next()) {
                cnt++;
                assertEquals(1, set.getLong("root.demo.d1.s3"));
            }
            assertEquals(1, cnt);
        }
        Thread.sleep(1000);
        // before merge completes
        try (ResultSet set = statement.executeQuery("SELECT * FROM root.**")) {
            int cnt = 0;
            while (set.next()) {
                cnt++;
                assertEquals(1, set.getLong("root.demo.d1.s3"));
            }
            assertEquals(1, cnt);
        }

        // after merge completes
        statement.execute("DELETE FROM root.demo.d1.**");
    }
}
